Though the temperature inside lighted electric bulb is
around 27000C, the filament does not burn because
(A) The metal of which it is made up of resistant burning
(B) The oxygen necessary for combustion (burning) is not
available as the bulb is evacuated and filled with pure
nitrogen or inert gas.
(C) It cannot burn in closed systems.
(D) It is made of non-metallic substance.
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(B) The oxygen necessary for combustion (burning) is not
available as the bulb is evacuated and filled with pure
nitrogen or inert gas.
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